# Lirum Device Info vs Mobile Master

The clearest difference is price: Mobile Master at Free against Lirum Device Info's $299.99. Mobile Master also leads on ratings volume (1.2K vs 11) and update cadence (every 6 days vs every 4 weeks). Lirum Device Info's advantage is in-app purchases (none vs 3) and ads (none vs shown). On rating, device support and iOS requirement there is nothing between them.

Mobile Master is free to download; Lirum Device Info costs $299.99 up front. Mobile Master sells 3 in-app purchases, starting at $0.49 per month. Lirum Device Info asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Lirum Device Info against 4.5 for Mobile Master. That said, the two scores are not equally well evidenced: Mobile Master has 1.2K ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 52% of Lirum Device Info's written reviews are positive against 72% of Mobile Master's.

Lirum Device Info ships an update every 4 weeks, Mobile Master every 6 days. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Lirum Device Info | Mobile Master |
| --- | --- | --- |
| Price | $299.99 | **Free** |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/lirum-device-info/id591453716/reviews) | [4.5 (1.2K ratings)](https://appshunter.io/ios/app/mobile-master-cpu-master/id1329937809/reviews) |
| Number of ratings | 11 | **1.2K** |
| Positive reviews | 52.0% of reviews | **72.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 100 MB | 22 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lirum Labs Technologies Inc.](https://appshunter.io/developer/591453719) | [东海 刘](https://appshunter.io/developer/1329937808) |

## What reviewers say

### Lirum Device Info

[App page](https://appshunter.io/ios/app/lirum-device-info/id591453716)

Monitor real-time system activity and view detailed device specifications using public APIs. Track CPU, memory, battery, and live sensor data. Access published specs like dimensions and display resolution.

**Highlights:** Real-time CPU and memory usage, Battery level and charging state, Live sensor data (accelerometer, gyroscope, etc.), Location readouts with accuracy, Bluetooth LE advertisement info, Detailed device specifications

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Lirum is back!
- 👍 Great app functionality and tools
- 🔍 Detailed device information

**What reviewers complain about**

- 🐛 Crashes and issues with newer devices
- ⚠️ Outdated and abandoned by developers
- 💰 Paid version not worth the cost

**Reported bugs**

- Unable to detect newer iPhone and iPad models
- Paid version lacks features compared to free version
- Crashes and freezes on some devices

**Requested features**

- Update database for latest iPhone and iPad models
- Add support for iOS 12 and newer
- Improve app stability and performance


### Mobile Master

[App page](https://appshunter.io/ios/app/mobile-master-cpu-master/id1329937809)

This free utility app provides detailed information about your device's hardware and software. It measures real CPU frequency, frequency reduction, and offers insights into your screen, battery, network, GPU, RAM, and sensors.

**Highlights:** Measure real CPU frequency, Monitor frequency reduction, View CPU, GPU, and RAM details, Check network speed and IP, Display battery design capacity, Access sensor data

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.49 | per month |
| Pro Annual | $2.99 | per year |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Lirum Device Info free?

Lirum Device Info costs $299.99, with no in-app purchases.

### Is Mobile Master free?

Mobile Master is free to download, with in-app purchases available.

### Which has better reviews, Lirum Device Info or Mobile Master?

Lirum Device Info and Mobile Master are both rated 4.5 out of 5 on the App Store, from 11 and 1.2K ratings respectively.

### Do Lirum Device Info or Mobile Master have ads?

Mobile Master shows ads; Lirum Device Info does not.

### Which is updated more often, Lirum Device Info or Mobile Master?

Lirum Device Info ships an update every 4 weeks, and Mobile Master every 6 days. Most recently, Lirum Device Info was updated on October 17, 2026 and Mobile Master on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*